Delay-lock-loop with improved accuracy and range

Details Delay-lock-loop with improved accuracy and range Delay-lock-loop with improved accuracy and range

2006-02-14

2006-02-14

Bocure, Tesfaldet (Department: 2631)

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

C375S373000, C327S158000

Reexamination Certificate

active

06999547

ABSTRACT:
A Delay-Lock-Loop circuit and a method for producing a phase shift comprises a phase generator producing a first and second clock signal having a first and second rising edge, respectively, wherein a timing difference between the first and second rising edges is equal to a desired cycle time; a delay circuit operable to receive the first clock signal and to produce a delayed clock signal; and a latch element connected to the delay circuit, and operable to check whether the delayed clock signal is delayed by an amount equal to the desired cycle time; a plurality of serially connected binary-weighted inverters connected to the latch element, which are operable to adjust the delay of the delayed clock signal to be equal to the desired cycle time; and a phase-shifted delay circuit connected to the delay circuit, and operable to produce multiple degrees of phase shift of the delayed clock signal.

REFERENCES:
patent: 3555194 (1971-01-01), Goto
patent: 5854797 (1998-12-01), Schwartz et al.
patent: 6073259 (2000-06-01), Sartschev et al.
patent: 6078200 (2000-06-01), Miyano
patent: 6094082 (2000-07-01), Gaudet
patent: 6121808 (2000-09-01), Gaudet
patent: 6125157 (2000-09-01), Donnelly et al.
patent: 6194930 (2001-02-01), Matsuzaki et al.
patent: 6445234 (2002-09-01), Yoon et al.
patent: 6605969 (2003-08-01), Mikhalev et al.
patent: 6665230 (2003-12-01), Shrader et al.
patent: 6735148 (2004-05-01), Gomm
patent: 6812799 (2004-11-01), Kirsch
patent: 6856658 (2005-02-01), Baba et al.
patent: 6879321 (2005-04-01), Santou
patent: 6930524 (2005-08-01), Drexler
patent: 6950956 (2005-09-01), Zerbe et al.
patent: 2002/0044325 (2002-04-01), Noguti
patent: 2002/0057119 (2002-05-01), Stubbs et al.
patent: 2003/0001637 (2003-01-01), Jung
patent: 2003/0001647 (2003-01-01), Schroedinger
patent: 2003/0039328 (2003-02-01), Tomofuji et al.
patent: 2003/0179028 (2003-09-01), Kizer et al.

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